Westcott 267 PocketBox Max 8 x 12 Inch
The Westcott Pocketbox Max offers much the same features as the Softbox III but at less than half the on-camera weight penalty. In addition, it comes with a second internal diffuser to further soften the light output, but at a cost of an additional stop of light loss. TTL will automatically compensate but the battery drain will be greater due to the increased demand in light output. Used on-camera, its 8-by-12-inch size also can interfere with the cameras auto exposure sensor and autofocus assist.
The Pocketbox Max folds flat to its 8-by-12-inch size for easy storage. Like most diffusers with this relatively large profile, it was primarily designed to be used off-camera. It can be used on-camera but can interfere with the cameras auto exposure sensor and autofocus assist and its mass can affect handheld camera stability.